Samsung SGH-i200 Service Manual page 32

Flow Chart of Troubleshooting and Circuit Diagrams
10-1-6. Receiver Part
Receiver does not work Receiver does not work
R500 at Speaker S/ W(U500) ="High" R500 at Speaker S/ W(U500) ="High"
Pin 4, 8 at U500 Pin 4, 8 at U500
(SPK_SEL)= "Low" (SPK_SEL)= "Low"
R510, R511 R510, R511
Check soldering at Codec(U502) Check soldering at Codec(U502)
Pin 8 =3.0V, Pin 7=1.8V Pin 8 =3.0V, Pin 7=1.8V
Pin 4="H" at Audio power(U504) Pin 4="H" at Audio power(U504)
Pin 4=19.2Mhz Pin 1="High" Pin 4=19.2Mhz Pin 1="High"
at AND gate U704 at AND gate U704
End End
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
Yes Yes
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No No
No No
Replace U500 or U502 Replace U500 or U502
No No
Resold R510, R511 Resold R510, R511
No No
No No
10-16
Resold R500 Resold R500
Replace U504 Replace U504
Replace U704 Replace U704